Stadium: Cancha Siete Leguas Round: 25 Ground: Hardcourt outdoor
| Challenger Champaign | 2018/11/14 16:00 | Alafia Ayeni v Sekou Bangoura | 7-6,2-6,3-6 |
| Challenger Champaign | 2018/11/13 18:00 | Ruan Roelofse v Alafia Ayeni | 3-6,4-6 |
| Challenger Champaign | 2018/11/12 16:00 | Ryan Shane v Alafia Ayeni | 4-6,6-1,6-4 |
| Challenger Champaign | 2018/11/11 16:00 | Gui Gomes v Alafia Ayeni | 3-6,2-6 |
| ITF Nigeria F5 | 2018/10/09 10:30 | Alafia Ayeni v Tyler Lu | 4-6,2-6 |
| ITF Canada F6 | 2018/09/09 15:00 | Alafia Ayeni v Felix Corwin | 6-3,6-3 |
| ITF Canada F6 | 2018/09/08 16:50 | Alafia Ayeni v Alejandro Gomez | 6-3,5-7,6-2 |
| ITF Canada F6 | 2018/09/07 18:10 | Alafia Ayeni v Pavel Krainik | 6-4,6-4 |
| Challenger Liuzhou | 2018/10/20 06:55 | Renta Tokuda v Yusuke Takahashi | 7-5,6-0 |
| Challenger Ningbo | 2018/10/16 10:00 | Tatsuma Ito v Yusuke Takahashi | 7-6,6-3 |
| Challenger Ningbo | 2018/10/15 02:30 | Arjun Kadhe v Yusuke Takahashi | 4-6,1-6 |
| Challenger Ningbo | 2018/10/14 02:30 | Zhao Zhao v Yusuke Takahashi | 0-6,6-7 |
| ATP Chengdu | 2018/09/22 07:20 | Yusuke Takahashi v Felix Auger Aliassime | 3-6,2-6 |
| Challenger Shanghai | 2018/09/08 07:55 | Yusuke Takahashi v Yuta Shimizu | 6-3,2-6,5-7 |
| Challenger Zhangjiagang | 2018/09/05 04:20 | Yusuke Takahashi v Alexander Bublik | 3-6,4-6 |
| Challenger Zhangjiagang | 2018/09/04 02:00 | Yuta Shimizu v Yusuke Takahashi | 6-4,6-2 |